Mold Types
Prototype Tooling · Production Molds
From early design validation to durable molds prepared for repeat production.
From DFM and mold design to precision machining, mold trials, and validation, CINDY MOULD manufactures custom injection molds for reliable and repeatable plastic part production.
We support custom injection mold projects from prototype tooling to production-ready molds, delivering durable tooling solutions for a wide range of plastic parts, production volumes, and molding requirements.
From early design validation to durable molds prepared for repeat production.
Cavity layouts selected around part complexity, annual volume, and production efficiency.
Runner systems evaluated for material use, cycle requirements, quality, and tooling cost.
Steel selection based on part requirements, finish expectations, mold life, and production conditions.
Support for common commodity and engineering plastics used across molded product applications.
Mold structures designed around undercuts, inserts, complex geometry, and functional requirements.
Our mold development process combines engineering review, controlled manufacturing, mold trials, and validation to reduce tooling risk before mass production.
Turn your part concept into a manufacturable, optimized mold design.
Precision manufacturing and assembly to build durable, production-ready molds.
Validate mold performance and part quality under actual production conditions.
We design and build a wide range of injection molds to meet different part structures, production volumes, and project requirements. Our engineering team selects the most suitable mold structure based on part design, material, annual volume, and target tool life.
Send us your 3D/2D drawings, material, annual volume, and tool-life requirements. Our engineering team can review your project and recommend a suitable mold solution.
Mold material is selected according to part resin, annual production volume, surface finish, part complexity, corrosion risk, wear conditions, and expected tool life. We consider steel grade, heat treatment, and mold construction together to support stable production and long-term performance.
| Mold Steel | Typical Application | Key Property | Typical Consideration |
|---|---|---|---|
| P20 | General production molds | Good machinability and cost balance | Cost-effective for most general injection molds |
| 718 / 718H | Medium-volume production | Higher hardness and good polishability | Stable performance for repeat production |
| NAK80 | Cosmetic plastic parts | Good polishability and dimensional stability | Suitable for appearance-critical molded parts |
| S136 | Optical / corrosive resin applications | Corrosion resistance and high polish | Used where corrosion resistance or high finish is required |
| H13 | Inserts / high-wear mold components | Heat resistance and wear resistance | Suitable for selected gates, inserts, sliders, and stressed areas |
Mold design, steel selection, and component configuration are adjusted according to production volume, part requirements, and project goals.
Appropriate heat treatment and surface finishing can improve mold hardness, wear resistance, surface quality, and production stability.
Used where additional hardening is not required for the selected molding application.
Used for components requiring increased hardness and wear resistance.
Improves surface hardness and wear resistance on selected mold components.
Selected according to cosmetic, optical, and molded-part appearance requirements.
Prepared according to required molded-part texture and appearance.
Mold structure and material selection consider long-term production, maintenance access, and consistent molded-part quality.
High-wear areas can be designed as replaceable components to simplify future maintenance.
Material and treatment are selected for repeated movement and long-term durability.
High-stress gate regions can use harder inserts or selected surface treatment to improve durability.
Mold design considers cooling efficiency, cleaning, inspection, and maintenance access.
A mold should do more than produce acceptable first samples. Its structure, cooling, ejection, wear components, and maintenance strategy should support stable and repeatable production over the life of the program.
For dimensional stability and repeatable cycles.
Cooling layout is reviewed according to part geometry, wall thickness, hot spots, and expected cycle conditions.
For cleaner part release and reduced deformation.
Ejector pins, sleeves, lifters, and release direction are considered together with part geometry.
For easier maintenance and longer mold service life.
High-wear areas such as inserts, sliders, lifters, and selected gate regions can be designed as replaceable components.
For more predictable filling and part quality.
Gate location, runner layout, and venting are evaluated according to resin behavior and part geometry.
For long-term production, not just first-sample approval.
The mold structure considers access to wear parts, cooling connections, moving components, and areas requiring regular maintenance.
Stable mold behavior helps reduce dimensional and appearance variation.
Wear and maintenance considerations help reduce avoidable interruptions.
Replaceable components and accessible structures simplify future servicing.
Tooling decisions consider the full production program, not only the first trial.
Share your 3D drawing, resin, expected annual volume, and production requirements. Our team can review tooling risks before mold manufacturing begins.
Many tooling problems can be avoided when part design, material, production volume, and key requirements are reviewed before mold manufacturing begins.
Part geometry issues are often discovered only after mold machining begins, causing delays and expensive tooling changes.
Samples may work, but the tooling may not match the real production volume or expected tool life.
Initial samples may look acceptable, but dimensions, warpage, ejection, or cycle stability can become inconsistent in repeat production.
High-wear areas can become difficult to repair, increasing downtime when the tool requires maintenance during production.
Share your part information and let our engineering team review the key factors before tooling starts.
Although performance and production needs vary across industries, our support framework remains consistent.
Support for early design verification, fit checks, and sample evaluation.
Prototype support for design validation, assembly testing, and early project confirmation.
Surface finishing support based on cosmetic, texture, and functional requirements.
Precision machining for mold cores, cavities, inserts, and critical mold components.
Review part geometry, draft, wall thickness, gating, ejection, and potential tooling risks.
Support from mold design and precision machining to fitting, trial, and optimization.
Support from mold trials and sampling to stable, repeatable production of molded parts.
Support for component fitting, product assembly, inspection, and functional verification.
Tell us whether your project requires tooling only, molded parts, or assembly support.
20+ years of mold manufacturing experience
One-stop support from tooling to molded parts and assembly
Strong support for engineering, quality, and sourcing teams
Production-focused solutions for different project requirements
Experience supporting custom plastic parts across multiple industries
We don’t just build injection molds — we help customers reduce tooling risks, improve manufacturability, and move projects from design to stable production more efficiently.
We typically need 3D CAD files, 2D drawings if available, part material, annual volume, surface requirements, and target tool life. These details help us review manufacturability and prepare a more accurate tooling quotation.
Mold lead time depends on part complexity, mold structure, cavity count, steel selection, surface requirements, and the number of trial and optimization rounds required. A more accurate schedule can be confirmed after reviewing the part data and tooling requirements.
Yes. Before tooling starts, we can review key factors such as wall thickness, draft, undercuts, gate location, ejection, parting line, cooling considerations, and other potential tooling risks.
Yes. We can support mold design, mold manufacturing, mold trials, sampling, optimization, and repeat production of injection molded plastic parts within the same project workflow.
Common options include P20, 718 / 718H, NAK80, S136, H13, and other mold steels selected according to resin, production volume, surface finish, wear conditions, and target tool life.
Yes. For projects requiring additional support after molding, we can assist with component fitting, product assembly, inspection, and functional verification according to project requirements.